975 resultados para Water birds--Erie, Lake.
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Prepared for Illinois Dept. of Energy and Natural Resources, Energy and Environmental Affairs Division.
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"January 1990."
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Description based on: Sept. 1990; title from caption.
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Includes indexes.
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"December 2000"--P. [4]
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"IEPA/BOW/98-012."
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Mode of access: Internet.
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